Bolthole Index

Collin County, Texas

Zoning, building permits and septic rules in Celina, Texas

The City of Celina, Texas adopts its own zoning for all land inside city limits1, and no building or structure may go up until the required permits are approved2. Celina's Building Services Division handles building permits3. Collin County's no-zoning answer covers only unincorporated land4. Which office issues septic permits inside Celina is unconfirmed.

At a glance

Zoning
Yes, city zoning applies to all land inside Celina limits1
Building permit
Required before building or placing structures in the city2
RV living
Prohibited as an on-site dwelling in single-family residential districts5
Minimum home size
1,200 sq ft in SF-R; 3,000 sq ft in SF-E67
Minimum lot
1 acre in SF-E; SF-R sets lot width instead89
Septic inside city
Not confirmed; ask the city, then Collin County Development Services10

Who to call

Building permits

City of Celina Building Services (Building Permits and Inspections)

Residential building permits and inspections inside Celina city limits; commercial permits use a separate contact on the same page.

(945) 362-9250

permits@celina-tx.gov

112 N. Colorado St Celina, TX 75008

Septic permits

Collin County Development Services (On-Site Sewage Facilities / OSSF Program)

Septic permits for property outside city limits in Collin County; whether it also serves addresses inside Celina is unconfirmed.

(972) 548-5585

4690 Community Ave., McKinney, Texas, 75071

Contact details are copied from each office’s official page and were checked against it on October 14, 2026.

Off-grid gear

Going off-grid in Celina means bringing your own water and power. The kit we’d start with:

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Does Celina, Texas have zoning, and what does it mean for RVs and lot size?

Yes. The City of Celina applies its zoning chapter to the use and development of all land inside its incorporated limits1. Districts include SF-E, SF-R, SF-A, SF-M, MF-1 to MF-3, CF, C, I, AG, MU and PD, plus overlays11.

The numbers depend on the district. In SF-E, the estate district, the minimum lot is 1 acre8 and the minimum air-conditioned floor area is 3,000 sq ft7. In SF-R, the minimum floor area is 1,200 sq ft6, and the table sets a minimum lot width of 35 ft at the building line with a maximum density of 3.5 units per acre9. Planned developments can differ12.

Recreational vehicles, travel trailers and motor homes may not be used as on-site dwellings in Celina's single-family residential districts5. A separate mother-in-law unit is allowed as an accessory structure in SF-E13. Tiny homes inside Celina are unconfirmed; ask the city's Building Services Division.

Do you need a building permit in Celina, and who issues it?

Yes. No building or structure, including signs and temporary structures, may be built in Celina until all applicable permits are approved by the responsible department or governing body2. Residential construction must sit on a permanent foundation that complies with the currently adopted international building codes14.

Celina's Building Services Division handles building permits and inspections inside the city limits3. Collin County's development permit applies to unincorporated land, not to addresses inside Celina15. We could not confirm Celina's owner-builder rules, certificate of occupancy or fee schedule, so ask Building Services before you budget.

How do septic permits work inside Celina?

We could not confirm who issues septic permits for addresses inside Celina city limits. Collin County Development Services requires an OSSF permit for property outside city limits10, and the county's page says another authorized agent may administer septic permitting inside city limits10.

Texas requires a permit and approved plan to build, alter, repair or extend an on-site sewage facility16. A tract of at least 10 acres can qualify for an exemption only if every listed condition is met16. Most Celina lots are on city utilities, but we could not confirm water and sewer connection rules, so ask the city before you buy.

Building a home in Celina: the steps, in order

  1. Confirm the zoning district of the parcel on the city's official zoning map11.
  2. Check that your plan meets that district's lot, floor-area and setback standards17.
  3. Apply for building permits through Celina's Building Services Division3.
  4. Confirm sewer or septic with the city, then with Collin County Development Services if the city does not serve the address10.
  5. If the driveway meets a state highway, apply to TxDOT using Form 105818.

What stays with Collin County, and what to check before you buy

For land outside Celina's limits, Collin County has no zoning other than for sexually-oriented businesses, salvage and junk yards, and animal slaughter operations4. A county development permit is required for projects that disturb ground or add footprint15. See the Collin County page for the county's rules.

Collin County's effective property tax rate is 1.7%19. Also confirm whether the lot sits in the city limits or its extraterritorial jurisdiction, which changes who regulates it20.

Watch-outs

  • Do not assume the county's no-zoning answer applies to a Celina address; it covers unincorporated Collin County only4.
  • Celina's RV rule covers single-family residential districts; other districts were not confirmed5.
  • Septic authority, inspections and fees inside Celina are unconfirmed; ask Building Services and Collin County Development Services10.

Sources

  1. Celina Code ch. 14 Zoning, Art. 14.01 Part 1 General Provisions (Celina), quoted and re-checked
  2. Celina Code ch. 14 Zoning, Art. 14.01 Part 1 General Provisions (Celina), quoted and re-checked
  3. City of Celina Building Services (Building Permits and Inspections) (celina-tx.gov)
  4. collincountytx.gov, quoted and re-checked
  5. Celina Code ch. 14 Zoning, Art. 14.02 Part 2 Residential Districts (Celina), quoted and re-checked
  6. Celina Code ch. 14 Zoning, Art. 14.02 Part 2 Residential Districts (Celina), quoted and re-checked
  7. Celina Code ch. 14 Zoning, Art. 14.02 Part 2 Residential Districts (Celina), quoted and re-checked
  8. Celina Code ch. 14 Zoning, Art. 14.02 Part 2 Residential Districts (Celina), quoted and re-checked
  9. Celina Code ch. 14 Zoning, Art. 14.02 Part 2 Residential Districts (Celina), quoted and re-checked
  10. Development Services: On Site Sewage Facilities, quoted and re-checked
  11. Celina Code ch. 14 Zoning, Art. 14.02 Part 1 Districts Established (Celina), quoted and re-checked
  12. Celina Code ch. 14 Zoning, Art. 14.02 Part 2 Residential Districts (Celina), quoted and re-checked
  13. Celina Code ch. 14 Zoning, Art. 14.02 Part 2 Residential Districts (Celina), quoted and re-checked
  14. Celina Code ch. 14 Zoning, Art. 14.02 Part 2 Residential Districts (Celina), quoted and re-checked
  15. collincountytx.gov, quoted and re-checked
  16. Getting a Permit for an OSSF - Such as a Septic System (Texas statewide rule), quoted and re-checked
  17. Celina Code ch. 14 Zoning, Art. 14.02 Part 2 Residential Districts (Celina), quoted and re-checked
  18. Section 4: Driveway Permits, Design, and Materials (Texas statewide rule), quoted and re-checked
  19. Effective property tax rate: Bolthole Index county data
  20. collincountytx.gov, quoted and re-checked

Written October 14, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.

Answers from the rulebook for Celina

Celina’s own rules

  • Building permitRequired

    Buildings and structures constructed within Celina city

    • All applicable permits must be approved by the appropriate department or governing body before construction
    “no buildings or structures, including signs and temporary structures, are allowed to be constructed within the city of celina unless all applicable permits have been approved by the appropriate department and/or the governing body responsible for approving such permit.”
  • Building code adoptedAdopted

    Residential construction inside Celina city

    • Zoning code refers to currently adopted international building codes; specific editions and amendments not verified from chapter 3
    “all residential units shall be constructed on a permanent foundation that complies with the currently adopted international building codes”
  • Local zoningPresent

    All land within the incorporated limits of Celina city

    • Adopted under Texas Local Government Code ch. 211
    • Chapter 14 is cited as the city's zoning ordinance
    “the provisions of this chapter apply to the use and development of all land within the incorporated limits of the city.”
  • Zoning districtsPublished

    Zoning districts inside Celina city

    • Districts include SF-E, SF-R, SF-A, SF-M, MF-1 to MF-3, CF, C, I, AG, MU, PD and overlay districts
    • Official zoning district map governs boundaries
    “the established zoning districts in the city of celina are as follows”
  • Minimum dwelling sizeSpecified

    SF-E single-family residential estate district, Celina city

    • Air conditioned space

    minimum floor area: >= 3000 sq ft

    “minimum lot area 1 acre minimum floor area (air conditioned space) 3,000 sq. ft. minimum number of garage spaces 2”
    One more reviewed finding on this topic
  • Minimum lot sizeSpecified

    SF-R single-family residential detached district, Celina city

    • Table lists no minimum lot area; sets minimum lot width 35 ft at building line and maximum density 3.5 units/acre
    • Planned developments may differ

    minimum lot width: >= 35 ft · maximum density: <= 3.5 units/acre

    “minimum lot width (at building line) 35' maximum overall density4 3.5 units/acre minimum lot area - minimum floor area 1,200 sq. ft.”
    One more reviewed finding on this topic
  • SetbacksSpecified

    SF-R single-family residential detached district, Celina city

    • Total front plus rear at least 40 ft with either at least 10 ft
    • Garage setback 20 ft
    • Corner side measured from curb; 10 ft from pavement edge if no curb
    • Planned developments may differ

    minimum side yard: >= 5 ft · minimum corner side yard: >= 15 ft (10 ft from pavement edge if no curb) · total front and rear: >= 40 ft (either at least 10 ft) · garage setback: >= 20 ft

    “minimum side yard setback2 5' minimum side yard setback on corner (measured from curb)3 15' minimum lot width (at building line) 35'”
    One more reviewed finding on this topic
  • Building heightSpecified

    SF-R single-family residential detached district, Celina city

    • Planned developments may differ

    maximum height: <= 40 ft

    “sf-r, single-family residential detached development standards maximum height 40' minimum front and rear sliding setbacks”
    One more reviewed finding on this topic
  • Living in an RVProhibited

    RVs, travel trailers and motor homes used as on-site dwellings in Celina single-family residential districts (SF-E, SF-R, SF-A, SF-M)

    • Stated in the residential districts general requirements, § 14.02.201(c)(8)
    • Applies to residential districts; other districts not checked
    “recreational vehicles, manufactured homes, travel trailers, or motor homes may not be used for on-site dwelling purposes.”
  • Accessory dwellingsLimited

    Accessory dwelling units in Celina residential districts (SF-E expressly allows a mother-in-law unit)

    • Must adhere to § 14.03.202(1) accessory dwelling unit regulations (not opened)
    • SF-E exterior standards must match the primary residence
    “a separate “mother-in-law” unit is allowed as an accessory structure and may be built in conjunction with a garage or other allowed accessory building.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Celina or Collin County directly.

  • Owner-builder exemption — Owner-builder exemption inside Celina city
  • Inspections — Inspections inside Celina city
  • Certificate of occupancy — Certificate of occupancy inside Celina city
  • Lot coverage — Lot coverage in SF-R and SF-E districts, Celina city
  • Camping on your land — Temporary camping inside Celina city
14 more unanswered
  • Tiny homes
  • Who permits septic
  • Septic permit
  • Septic inspection
  • Off-grid sanitation
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • Subdividing land
  • Driveway access
  • Building in a floodplain
  • Short-term rentals
  • Permit fees
  • Permit process

Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.

Unanswered questions are usually a sign that Celina publishes no rule on the point, not that none exists. Collin County’s page lists the county offices to call.

← All of Collin County: county rules, score and offices